import javax.swing.JComponent;

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.geom.Ellipse2D;


public class ThreeButtonComponent extends JComponent

{
   
public void paintComponent(Graphics g)
   
{
      
Graphics2D g2 = (Graphics2D) g;
      
// your work here
     g2.setColor(Color.GRAY);
      g2.fill3DRect(50,50,50,50,true);
      g2.fill3DRect(110,50,50,50,true);
      g2.fill3DRect(170,50,50,50,true);
      
g2.setColor(Color.RED);
      
g2.fillRoundRect(60,60,30,30,30,30);
      g2.setColor(Color.GREEN);
     
g2.fillRoundRect(120,60,30,30,30,30);
      g2.setColor(Color.CYAN);
      
g2.fillRoundRect(180,60,30,30,30,30);
   
}

}